Question

What is the oxidation state of vanadium in the compound NH.VO, ?
(a)-1
(b) +1
© +3
(d) +5​

Answer 1

d)+5 is the correct answer

explanation

The usual source of vanadium in the +5 oxidation state is ammonium metavanadate, NH4VO3

Answer 2

Vanadium is a widely used transition metal in various oxidation processes under homogeneous and heterogeneous (supported conditions.

Ammonium metavanadate, NH4VO3 will be the source of the +5 oxidation state. Treatment of the ammonium metavanadate with hot hydrochloric acid partly reduces the vanadium to the +4 oxidation state in the form of the VO2+ ion.